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diff --git a/doc/language/function/cpsc-function-is_num.7.md b/doc/language/function/cpsc-function-is_num.7.md new file mode 100644 index 0000000..a85acfe --- /dev/null +++ b/doc/language/function/cpsc-function-is_num.7.md @@ -0,0 +1,28 @@ +% CPSC-FUNCTION-IS_NUM(7) + +# NAME + +cpsc-function-is_num - test whether text represents a number + +# SYNOPSIS + +```text +IS_NUM(text : STRING) RETURNS BOOLEAN +``` + +# DESCRIPTION + +Return true for a nonempty string fully consumed by the runtime's +numeric conversion. Leading whitespace is accepted; trailing whitespace +or other trailing text is rejected. + +# EXAMPLE + +```text +OUTPUT IS_NUM("12.5") +``` + +# SEE ALSO + +[cpsc-language-overview(7)](../cpsc-language-overview.7.md), [cpsc-function-str_to_num(7)](cpsc-function-str_to_num.7.md). + |